An explanation of one-loop induced h→μτ decay
We discuss a possibility to explain the excess of h→μτ at one-loop level. We introduce three generations of vector-like lepton doublet L′ and two singlet scalars S1,2 which are odd under Z2, while all the standard model fields are even under this discrete symmetry. We show that S1 can be a good dark...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-08-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316302027 |
| _version_ | 1818488270511669248 |
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| author | Seungwon Baek Takaaki Nomura Hiroshi Okada |
| author_facet | Seungwon Baek Takaaki Nomura Hiroshi Okada |
| author_sort | Seungwon Baek |
| collection | DOAJ |
| description | We discuss a possibility to explain the excess of h→μτ at one-loop level. We introduce three generations of vector-like lepton doublet L′ and two singlet scalars S1,2 which are odd under Z2, while all the standard model fields are even under this discrete symmetry. We show that S1 can be a good dark matter candidate. We show that we can explain the dark matter relic abundance, large part of the discrepancy of muon g−2 between experiments and the standard model predictions, as well as the h→μτ excess of ∼1%, while evading constraints from experiments of dark matter direct detection and charged lepton flavor violating processes. We also consider prospects of production of S2 at LHC with energy s=14 TeV. |
| first_indexed | 2024-12-10T16:48:47Z |
| format | Article |
| id | doaj.art-f7331cffadff41b5a8cdebe24eceffa4 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-10T16:48:47Z |
| publishDate | 2016-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-f7331cffadff41b5a8cdebe24eceffa42022-12-22T01:40:59ZengElsevierPhysics Letters B0370-26931873-24452016-08-01759C919810.1016/j.physletb.2016.05.055An explanation of one-loop induced h→μτ decaySeungwon Baek0Takaaki Nomura1Hiroshi Okada2School of Physics, KIAS, Seoul 130-722, Republic of KoreaSchool of Physics, KIAS, Seoul 130-722, Republic of KoreaPhysics Division, National Center for Theoretical Sciences, Hsinchu, 300, TaiwanWe discuss a possibility to explain the excess of h→μτ at one-loop level. We introduce three generations of vector-like lepton doublet L′ and two singlet scalars S1,2 which are odd under Z2, while all the standard model fields are even under this discrete symmetry. We show that S1 can be a good dark matter candidate. We show that we can explain the dark matter relic abundance, large part of the discrepancy of muon g−2 between experiments and the standard model predictions, as well as the h→μτ excess of ∼1%, while evading constraints from experiments of dark matter direct detection and charged lepton flavor violating processes. We also consider prospects of production of S2 at LHC with energy s=14 TeV.http://www.sciencedirect.com/science/article/pii/S0370269316302027 |
| spellingShingle | Seungwon Baek Takaaki Nomura Hiroshi Okada An explanation of one-loop induced h→μτ decay Physics Letters B |
| title | An explanation of one-loop induced h→μτ decay |
| title_full | An explanation of one-loop induced h→μτ decay |
| title_fullStr | An explanation of one-loop induced h→μτ decay |
| title_full_unstemmed | An explanation of one-loop induced h→μτ decay |
| title_short | An explanation of one-loop induced h→μτ decay |
| title_sort | explanation of one loop induced h μτ decay |
| url | http://www.sciencedirect.com/science/article/pii/S0370269316302027 |
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